Tagged “cordcutters”

1. Using FFMPEG to add a aac stream to a video with ac3
   • 2015 January 01
   • cordcutters,
   • roku

   The following command line uses ffmpeg to change an avi file to an mp4 file, while adding a stereo AAC audio track in stream one for Roku compatibility.

   ffmpeg -i input.avi -map 0:v -c:v copy -map 0:a:0 -ac 2 -c:a libfdk_aac -map 0:a -c:a:1 copy output.mp4

   In retrospect, I wonder if the first -map 0:a:0 should be just -map 0:a.

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